As harappans migrated to india indra was the most worshipped god and he led them to victory in battle for a right to live there.
however the local dravidians venerated gods of creation and procreation.
Some scientists believed ancient harappan gods survived into hinduism.
Belief Systems, philosophies, and ideologies
Aryan thought of religious sacrifices shifeted dramaticall as they became more streile and less of communication with the gods
Even many local priests lost faith and moved into the woods to become hermits and reflect on the relationship between people and the gods
Held animals in very high esteem as they were recognized to be vital vores of nature
Science and Technology
Gained the technology of chariots to use in batlle
the building techniques of the Harappan were advanced enough to have standarized sized buildings
were known for one of the most sophisticated sewage system, in which their toilets drained into the city's sewage system from the structures they lived in
The arts and architecture
Drawings on pots showed everything in their lives from farming to "populating"
Vedas were a collection of songs dedicated to the gods
Development and interaction of cultures
Civilization:harappan/arayan/dravidian
Name:wallace